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authorHannes Reinecke <hare@suse.de>2012-07-26 11:12:18 +0200
committerNeilBrown <neilb@suse.de>2015-02-06 09:32:57 +1100
commitdfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa (patch)
tree2b3fcf506f4956a34f709eef4c9bc9260e5ae788 /drivers/md/md.h
parent6791875e2e5393845b9c781d2998481089735134 (diff)
downloadop-kernel-dev-dfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa.zip
op-kernel-dev-dfe15ac1c6ad301b092ed295f0cfdb16cfaf5cfa.tar.gz
md: wakeup thread upon rdev_dec_pending()
After each call to rdev_dec_pending() we should wakeup the md thread if the device is found to be faulty. Otherwise we'll incur heavy delays on failing devices. Signed-off-by: Neil Brown <nfbrown@suse.de> Signed-off-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 14367d9..318ca8f 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -474,13 +474,6 @@ static inline int mddev_trylock(struct mddev *mddev)
}
extern void mddev_unlock(struct mddev *mddev);
-static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
-{
- int faulty = test_bit(Faulty, &rdev->flags);
- if (atomic_dec_and_test(&rdev->nr_pending) && faulty)
- set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
-}
-
static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
{
atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
@@ -666,4 +659,14 @@ static inline int mddev_check_plugged(struct mddev *mddev)
return !!blk_check_plugged(md_unplug, mddev,
sizeof(struct blk_plug_cb));
}
+
+static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
+{
+ int faulty = test_bit(Faulty, &rdev->flags);
+ if (atomic_dec_and_test(&rdev->nr_pending) && faulty) {
+ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+ md_wakeup_thread(mddev->thread);
+ }
+}
+
#endif /* _MD_MD_H */
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